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- Title
Effective $\boldsymbol{\bar{K}\!N}$ interaction with strong πΣ dynamics constrained by chiral SU(3) symmetry.
- Authors
Hyodo, Tetsuo; Weise, Wolfram
- Abstract
We derive a single-channel effective $\bar{K}\!N$ interaction from chiral SU(3) coupled-channel dynamics, emphasizing the important role of the πΣ channel and the structure of the Λ(1405) resonance. The chiral low energy theorem requires strongly attractive interaction not only in the $\bar{K}\!N$ channel but also in the πΣ channel. As a consequence of the strong πΣ dynamics, the equivalent potential in single $\bar{K}\!N$ channel turns out to be less attractive than the one used in a purely phenomenological approach.
- Subjects
ANALYTICAL mechanics; STATICS; RESONANCE; PHENOMENOLOGY; ANALOG resonance
- Publication
Hyperfine Interactions, 2009, Vol 193, Issue 1-3, p237
- ISSN
0304-3843
- Publication type
Article
- DOI
10.1007/s10751-009-0006-9